Originally published in 1882, Clarence Dutton's Tertiary History of the Grand Cañon District has become one of the definitive books on the Grand Canyon. Commissioned as a study of the region's geology and issued by the fledgling U.S. Geological Survey, it is as much admired today for its literary as its scientific merits. With its beautiful illustrations by Thomas Moran and William Henry Holmes, it is a seminal work on the Canyon that has never been...